Top 10 Events That Can End the World | viral video

In the center of our Solar System, there is a ticking bomb. And when it explodes, it will end all life on Earth. That ticking bomb is our Sun. Like all the stars in the Universe, it has an expiration date. And some five billion years from now, it will swell into a red giant, obliterating everything in its vicinity. Including you. If you think that's bad, you ain't seen nothing yet. Here are 10 doomsday events that will end the world. What's a solar storm? Will an alien invasion happen?